Industrial Request-to-Exit Push Button | 2" Aluminum Button | 5A N/O & N/C Contacts | Class I & II Hazardous Locations

Provide dependable electronic exit-control activation in hazardous industrial environments with the Alarm Controls EXP-1 Explosion-Resistant Request-to-Exit Station, specifically designed for applications where flammable gases, vapors, or combustible dust may be present.

Manufactured by Alarm Controls, an ASSA ABLOY company, the EXP-1 features a heavy cast NEMA Type 7 enclosure, a large 2-inch aluminum push button, and a momentary-action electrical switch for operation of compatible door-release and access-control circuits.

The button is clearly marked PUSH TO EXIT in durable black epoxy lettering, providing an easily recognizable manual exit-control point.

The EXP-1 includes one normally open (N/O) and one normally closed (N/C) contact, with electrical contacts rated at 5 amps at 35V DC or 120V AC.

Unlike standard commercial exit buttons, the EXP-1 is specifically manufactured for designated hazardous-location applications and carries manufacturer-reported UL and ULC hazardous-location approvals.

Its heavy-duty enclosure and mechanical switching design make it suitable for properly engineered industrial facilities requiring an explosion-resistant electrical control station.

Key Features

• Explosion-Resistant Construction: Designed for approved hazardous-location applications.

• NEMA Type 7 Enclosure: Heavy cast enclosure for suitable classified industrial environments.

• Hazardous-Location Approval: Manufacturer reports UL and ULC approval for specified hazardous locations.

• Class I Applications: Suitable for specified classifications involving flammable gases and vapors.

• Class II Applications: Suitable for specified classifications involving combustible dust.

• 2" Diameter Push Button: Large aluminum button for convenient manual activation.

• PUSH TO EXIT Marking: Durable black epoxy-ink lettering identifies the exit-control function.

• Momentary Switch Operation: Contacts change state when pressed and return when released.

• Normally Open Contact: One N/O contact for compatible electronic control circuits.

• Normally Closed Contact: One N/C contact for compatible lock-release circuits.

• 5A Contact Rating: Electrical contacts rated at 5A at 35V DC or 120V AC.

• Heavy-Duty Industrial Design: Built for demanding industrial electrical-control installations.

• 1/2"-14 NPT Connection: Threaded conduit opening for an appropriately specified wiring connection.

• Surface-Mount Enclosure: Designed for installation on a suitable fixed mounting surface.

• Mechanical Push-Button Activation: No external power is needed to operate the mechanical switch itself.

• Access Control Compatibility: Can interface with appropriately designed electronic door-release equipment.

• Custom Button Marking: Manufacturer offers custom screening options.

• Limited Lifetime Warranty: Subject to Alarm Controls' applicable warranty terms.

Product Specifications

• Manufacturer: Alarm Controls

• Parent Company: ASSA ABLOY

• Model / SKU: EXP-1

• Product Series: EXP Hazardous Environment Stations

• Product Type: Explosion-Resistant Request-to-Exit Push Button

• Button Function: PUSH TO EXIT

• Button Action: Momentary

• Button Diameter: 2"

• Button Material: Aluminum

• Button Lettering: Black Epoxy Ink

• Enclosure: Heavy Cast

• Enclosure Rating: NEMA Type 7

• Contact Arrangement: One N/O and One N/C

• Contact Rating: 5A at 35V DC or 120V AC

• Conduit Connection: 1/2"-14 NPT

• Overall Height: 6-1/2"

• Overall Width: 4"

• Overall Depth: 4-1/2"

• Hazardous-Location Classification: Specified Class I and Class II, Division 1 and 2 applications

• Class I Groups: B, C, D

• Class II Groups: E, F, G

• Manufacturer-Reported Approvals: UL and ULC for Specified Hazardous Locations

• Mounting: Surface Mount

• Operating Principle: Mechanical Electrical Switching

• Built-In Timer: No

• Latching Function: No

• Electronic Lock Included: No

• Electrical Power Supply Included: No

• UPC: 604840210010

• Manufacturer Warranty: Limited Lifetime, Subject to Terms

Hazardous-location suitability must be verified against the actual product nameplate, certification documents, site classification, and applicable electrical code.

How the EXP-1 Works

1. Manual Push-to-Exit Activation

The EXP-1 uses a large mechanical push button to activate its electrical switch contacts.

When the button is pressed, the normally open contact closes and the normally closed contact opens.

The connected control equipment responds according to the installation's wiring configuration.

2. Momentary Switch Operation

The EXP-1 is a momentary-action station.

The electrical contacts change state only during button activation and return to their normal state when the button is released.

The EXP-1 does not remain mechanically latched after activation.

3. Normally Open Contact

The normally open contact can provide an activation signal to appropriately designed electronic access-control or door-release equipment.

4. Normally Closed Contact

The normally closed contact can be used in a suitable control circuit requiring contact interruption to initiate door release.

5. Hazardous-Location Enclosure

The EXP-1 features a heavy cast NEMA Type 7 enclosure.

This enclosure is designed to contain an internal ignition event within its intended hazardous-location classification when the product is correctly installed with compatible wiring methods and fittings.

The enclosure must be installed according to its certification and applicable hazardous-location electrical requirements.

Hazardous-Location Applications

Class I – Flammable Gases and Vapors

For appropriately classified areas involving specified flammable gases or vapors, such as selected:

• Chemical Processing Facilities

• Petroleum and Petrochemical Facilities

• Fuel Handling Installations

• Industrial Manufacturing Areas

• Solvent Handling Facilities

Class II – Combustible Dust

For appropriately classified areas involving specified combustible dusts, such as selected:

• Grain Processing Facilities

• Food Processing Plants

• Industrial Powder Handling Facilities

• Certain Manufacturing Facilities

• Dust-Generating Production Areas

Important: A facility's general industry does not establish the classification of a particular installation location. The specific area and hazardous materials must be evaluated before selecting equipment.

Compatible Electronic Control Applications

The EXP-1 may be incorporated into appropriately designed industrial and commercial systems using:

• Access-Control Panels

• Request-to-Exit Inputs

• Approved Electronic Door-Release Controllers

• Compatible Electromagnetic Lock Release Circuits

• Appropriate Electric-Strike Control Circuits

• Industrial Safety and Security Monitoring Systems

• Low-Voltage Control Relays

The contact rating must be observed, and any additional equipment installed within the hazardous area must also be suitable for that location.

The EXP-1 is a switching station only. It does not contain an electromagnetic lock, access-control panel, power supply, or door-release timer.

Installation & Compatibility

The Alarm Controls EXP-1 should be installed by qualified personnel experienced with hazardous-location electrical equipment and commercial door-control systems.

Installation Considerations

• Confirm the hazardous-area classification before selecting the device.

• Verify the product's nameplate approvals match the intended installation.

• Mount the cast enclosure securely to a suitable surface.

• Use approved conduit, sealing fittings, and wiring methods for the classified location.

• Connect the normally open and normally closed switch contacts according to the manufacturer's instructions.

• Observe the 5A contact rating and applicable voltage limits.

• Verify operation of the connected access-control system.

• Test the switch's momentary operation.

• Confirm all required emergency-egress provisions operate independently as required by code.

Important Installation Information

• This listing is for the Alarm Controls EXP-1 momentary PUSH TO EXIT station.

• This model is not a latching or key-reset emergency station.

• It does not independently retract a mechanical door latch.

• It is not a complete electronic access-control system.

• It is not a substitute for listed panic hardware or fire-exit hardware when those devices are required.

• The NEMA Type 7 designation does not automatically establish suitability for outdoor weather exposure.

• The N/O and N/C contacts must be connected according to the approved system wiring diagram.

• All conduit fittings, seals, wiring, and associated equipment must be suitable for the actual hazardous classification.

• Hazardous-location certification of the button does not certify the entire installed door or access-control system.

• Required emergency-egress and fire-alarm interfaces must comply with applicable regulations.

• Installation must follow the manufacturer's instructions, applicable electrical and life-safety codes, and the requirements of the Authority Having Jurisdiction.

Why Choose the Alarm Controls EXP-1?

The Alarm Controls EXP-1 Explosion-Resistant Request-to-Exit Station provides dependable manual switching for appropriately classified hazardous industrial environments.

Its heavy cast NEMA Type 7 enclosure, large 2-inch PUSH TO EXIT button, momentary operation, 5A rated N/O and N/C contacts, and hazardous-location approvals make it a specialized solution for industrial door-release control applications.

For facilities requiring a professionally installed electrical exit-control station in a hazardous location, the EXP-1 offers durable construction and straightforward mechanical operation.